Color

#1b79fe

#1b79fe
hex#1b79fe
rgbrgb(27, 121, 254)
hslhsl(215, 99%, 55%)
oklchoklch(0.603 0.215 258.9)
Closest name: Azure (#007fff)Relative luminance 0.2106

Colors that go with #1b79fe

Charcoal, Crimson and Copper lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#fe9f1b

#1bebfe · #2e1bfe

#fe1b79 · #79fe1b

Split-complementary

Open in tool →

#fe2e1b · #ebfe1b

#fe1beb · #fe9f1b · #1bfe2e

Contrast

#1b79fe as textRatioAAAA largeAAAFix
Aaon white
4.03:1failpassfail
  • AA: use #066dfe as the text (4.54:1)
  • AAA: use #0151c1 as the text (7.12:1)
  • AA: or shift the background to #141414 (4.57:1)
Aaon black
5.21:1passpassfail
  • AAA: use #4d97fe as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b79fe as the background.

Brands using this color

Fonts for this mood

#1b79fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b79fe
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1b79fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b79fe-9ca8c4-df5d4e-201f2d-e9f0f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md